Tektronix 2247A

‘
43
®
EY
Performance Check Procedure
J. Set:
Vertical MODE CH 1, CH 2, and
CH 4 (CH 3 off)
Trigger SOURCE CH 3
k. CHECK—display amplitude is 0.1 division or less, excluding trace
width, on the CH 1, CH 2, and CH 4 traces.
1. Move sine-wave generator signal to the CH 4 Input.
m. Set:
Vertical MODE CH 1, CH 2, and
CH 3 (CH 4 off)
Trigger SOURCE CH 4
n, CHECK—display amplitude Is 0.1 divislon or less, excluding trace
width, on the CH 1, CH 2, and CH 3 traces.
o. Disconnect the test setup.
21. AC-Coupled Lower -3 dB Point
a. Set:
A SEC/DIV 10 ms
Vertical MODE CH 1 (all others
off)
Trigger SOURCE VERT
Trigger MODE NORM
b. Connect function generator (FG 502) output to the CH 1 Input via a
50 1 BNC coaxial cable and a 50 1 BNC termination.
c. Set the function generator output controls to produce a six-division
sine-wave display at 10 Hz (with no dc offset).
d. Set CH 1 Input COUPLING to AC.
e. CHECK —display amplitude Is 4.2 division or more.
f. Set Vertical MODE to CH 2 (CH 1 off).
2247A Operators 7-25